GOP lawmakers are following Trump's attacks on Robert Mueller, the FBI and its leadership, which ex-Watergate prosecutor Jill-Wine Banks says are a "serious threat to democracy" and could be considered in Mueller's probe. David Frum & Matt Miller join Ari Melber. watch

House Republicans are pushing to end their Russia probe, but ex-federal prosecutor Paul Butler says even if those probes wrapped up, Robert Mueller's will likely go through 2018 and into 2019. How will Trump & the GOP respond? Betsy Woodruff also joins Ali Velshi. watch

Elijah Cummings, ranking member on the House Oversight Committee, says Republicans are trying to smear and delegitimize Robert Mueller's investigation and the FBI. This come as the probe closes in on Donald Trump. Eric Boehlert & Jonathan Capehart join Joy Reid. watch

President Donald Trump insisted for months that he wouldn't benefit from the tax bill, but his press secretary has finally admitted he will. Jason Johnson predicts a 2018 "boondoggle" for the GOP after the tax bill. He joins Joy Reid with David Cay Johnston. watch

Indivisible founder Ezra Levin predicts "unexpected" and "historic" GOP losses in 2018 as a new poll shows Democrats have their biggest lead in congressional elections in 20 years. Ex-Obama Press Secretary Josh Earnest says opinion of the bill will only get worse. watch

Former George W. Bush speechwriter David Frum says the continued attacks on Robert Mueller from Republicans are "pollution" and threaten to destroy the trust not only of the FBI and DOJ, but of all public institutions. Barbara McQuade also joins Lawrence O'Donnell. watch

Lawrence O'Donnell says "decency still lives" in the Senate after Mark Warner, the top Democrat on the Senate Intelligence Committee, took to the floor to issue a direct warning to the president: firing special prosecutor Robert Mueller will cross a "red line." watch

Trump says he won't benefit from the GOP tax bill, but it's impossible to know since he still hasn't released his tax returns. Lawrence O’Donnell debunks the White House claim that Trump is under audit. watch

Lawrence O'Donnell compares the behavior of Republican Senators who will be enriched by the Trump-GOP tax bill to Senators he worked with who would have been "embarrassed" by serving special interests. watch

Jill Wine-Banks, ex-assistant Watergate prosecutor, says Robert Mueller is nowhere near finished with his Russia probe and he'll likely be investigating the Trump team for months to come. Lawrence O'Donnell also discusses with Julia Ainsley & Natasha Bertrand. watch

The Washington Post reports White House lawyers will be meeting with Robert Mueller's team this week and plan to ask when Mueller expects to be done with the investigation. The news comes as Trump and Republicans ramp up attacks on DOJ officials & Mueller himself. watch

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Lawrence O’Donnell brings his extraordinary background in politics and entertainment to “The Last Word with Lawrence O’Donnell,” airing weeknights on MSNBC. Drawing upon his experience as a former chief of staff on the Senate Finance Committee and as an Emmy-winning executive producer and writer of “The West Wing,” O’Donnell gives the last word and rewrites the most compelling stories of the day.